Multi-tone Testing can save both Time and Money

Given the huge amount of time required to conduct a radiated immunity test, it is no wonder operators “dream” of ways to improve efficiency to speed up the test. The musings generally go as follows:

-Can one antenna cover the entire frequency range?

-Can RF switching be automated?

-Let’s add a controller to automatically switch antenna polarizations or even go as far as

automatically turn the EUT to expose all four sides to the RF field.

-What if we could speed up the dwell time just a hair without compromising the test?

While all of the above thoughts are useful, they only decrease transition times, which unfortunately comprise only a fraction of the total test time. This articles goes over multi-mode testing techniques that can save time and money.